15 to 30 random questions in 15 to 30 minutes, by the level you choose: dockerfiles, compose, pods, services, probes, scaling, helm, security. After you submit you get your score, your strong and weak topics, and the right answer with an explanation for every question.
Want to revise first? Read the Docker and Kubernetes interview questions and answers.
The test covers 14 topics across three levels. Each attempt picks 15 to 30 questions at random, by the level you choose, so every attempt is different.
One question from each level, the way they appear in the test. A new set comes on the 1st of every month. Try it, then open the answer.
Answer: A named group that divides one cluster's objects, for example per team. Namespaces scope object names and are where RBAC rules, resource quotas and limits apply. They do not isolate network traffic by themselves and do not create a separate control plane.
Answer: The new pods' readiness probe fails, so the rollout cannot go on. A rolling update waits for new pods to become ready before removing more old ones. If readiness never passes, the rollout stalls and, after progressDeadlineSeconds (600 by default), reports ProgressDeadlineExceeded.
Answer: It stops the container from using any swap. --memory-swap is memory plus swap, so equal values leave zero swap and the container is OOM-killed at 512m instead of slowing down in swap. If --memory-swap is unset, it may use as much swap as its memory limit.
Take the full Docker and Kubernetes mock test: 15 to 30 questions and 15 to 30 minutes, by level.
A question counts as right only when you pick exactly the right option, or all the right options where it says so; a question left blank counts as wrong. Your score is the share of the test's questions you got right (15 to 30, by level). The result also scores every topic, so you know what to revise before the interview.
Yes. The Docker and Kubernetes mock test is free. You need a free CoreHRx Jobs account to start it, so your score and the topics to work on are saved.
It depends on the level: Fresher has 15 questions in 15 minutes, Intermediate has 20 questions in 20 minutes, Experienced has 30 questions in 30 minutes. They are multiple-choice questions picked at random from a larger bank of Docker and Kubernetes questions at your level, so every attempt is different.
The questions cover Pods and Deployments, Dockerfile and Layers, Kubernetes Architecture, Services and Ingress, Troubleshooting, Images and Containers, Docker Compose, Resources and Autoscaling, Security, Volumes and Networks, ConfigMaps and Secrets, Health Probes, Helm Basics, Multi-stage Builds. Your result shows how you did in each topic.
Fresher if you are a student or have less than a year of experience, Intermediate for 1 to 5 years at work, and Experienced for 5 years or more.
Only your best Docker and Kubernetes score, and only when it is 60% or more. It shows on the job applications you send on CoreHRx. Lower scores stay private.
Yes, up to 10 tests a day. Each attempt picks questions you have not seen recently first.
